|
The Free On-line Aquaculture Dictionary |
Heavy Metal - Toxicity |
Heavy Metals toxicity |
Upper limits for continuous exposure |
Cadmium |
0.0004ppm |
Chromium |
0.05ppm |
Copper |
0.006ppm |
Lead |
0.03ppm |
Mercury |
0.00005ppm |
Zinc |
0.03ppm |